lxd: Unset volatile.last_state.ready on daemon init
lxd: Unset volatile.last_state.ready on daemon init

This unsets the volatile.last_state.ready key on daemon init. That is
because the server cannot determine whether or not the instances are
truly ready.

Signed-off-by: Thomas Hipp <5f82c492b3b00e427412d216ce820707a10c51ce@canonical.com>

stgraber/lxd,hallyn/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,hallyn/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,lxc/lxd,hallyn/lxd,lxc/lxd,lxc/lxd,stgraber/lxd,stgraber/lxd,hallyn/lxd,lxc/lxd,lxc/lxd